ZF8HP51 / ZF8HP45
Toyota Supra 2020+ A90/A91 -- BMW's equiped with the 8HP45 / 50 / 51
Drag 750 Build Service Includes:
- Upgraded Clutch Pack for Clutch E (+2 Frictions / Steels)
- Upgraded Clutch Pack for Clutch C (+2 Frictions / Steels)
- Upgraded Clutch Pack for Clutch D (+1 Friction / Steels)
- Upgraded Clutch Pack for Brake A (+1 Friction)
Upgraded Clutch Pack for Brake B (Wider Frictions) - Transmission Fully Disassembled and Cleaned
- All seals, Bearing, and Bushings Inspected
- New Fill Plug
- New Pan and Filter Assembly
- 9L of our Race Fluid
- Fully in-car Tested
Want to take the trans a step further? Designed in-house and made from 4340 steel, our E Hub is available for the Drag 750 package.
Upgrading the E Hub is highly recommended for those who are making at/above 700 ft/lbs. When the stock hub breaks, it generally leaves a path of carnage behind.
BMW Owners: Some version of the 8HP45 use an older revision of the Planetary Sun Gear #3, which has an incompatible spline count. Fret not, as we offer the updated Sun Gears with 62 splines! This is only needed for the older style 8HP45's when upgrading to our Chromoly E Hub.
The upgrade service is very affordable and perfect for a mildly modified Supra / BMW.
In this build we address the three main weak points of this transmission, Clutch E, C and D. Clutches E and C are small and take a lot of the torque in 1st, 2nd, 5th, and 6th. This is why a stock transmission will slip in 5th or 6th when overpowered. We upgrade the frictions and steels in both these clutches but also add two plates to the stock clutch count. The D clutch gets a similar treatment but with only one extra plate. All clutches are set to specific tolerances to ensure they work properly and tighten up the shifts even more than a stock transmission.
We also fully test each transmission in our shop Supra. Every transmission gets driven on to ensure it is performing correctly.
Core exchanges are available for the 8HP51. Our transmission cores do NOT ship with a valve body. You will need to swap your VB over to the new transmission prior to installation.
** Note that in most cases, you will have to reset adaptation values in your TCM with a transmission build **
| Specs | |
| Heavily Worn or Damaged | HEAVILY WORN OR DAMAGED UNITS: Any additional parts needed which are not listed or not part of this build will cost extra to replace. We will email pictures and detailed information if this is the case. We know you do not like surprises, so we try to make this process as painless as possible. If this turns out to be the case, though, please keep in mind that we just want you to have a high quality built assembly. Having your vehicle down is bad enough, so why cut corners and risk it again? Quality is the key here and sometimes it costs more to do this on a specialty or aging platform. Simply put, it is not worth the risk of using a sub-par component if an inspection reveals it is a weak link. |
| Attention To Detail | ATTENTION TO DETAIL: All machine work and cleaning is performed in-house. We also spend a lot of time on synchro timing, alignment and operation to give you the best shift possible. Check out our article on Synchro Blueprinting which can be found under TechTips / Technical Articles |
| Cleaning Disclaimer | CLEANING DISCLAIMER: Parts are cleaned using industrial parts washers. Exceptionally clean units are one of the many reasons why our Transmissions and Transfer Case assemblies are of the highest quality in the business! We have high-end cleaning equipment which other trans builders and service shops could only dream of. With the best cleaning equipment, we also have a very clean facility. All units are built in a spotless environment using tools, and benches, which are clean and only used for assembly purposes. In other words, the same tools used to pull your dirty old transmission out of your car are NOT the same tools used to rebuild your pristine unit afterward. Take a look at the typical shop and check their tools. It is shocking how dirty things are in most shops and that dirt will end up in your unit. That does not happen here. All machine work, cleaning, and detail work is performed in-house by very talented technicians and engineers. The quality you get from Jacks Transmissions is an unbelievable bargain. We do not know of anyone else who cleans the transmission via a 110gal Ultrasonic and Pulse-Jet unit, or who employs such talented people. The quality and experience you get from Jacks Transmissions shows with the overwhelming number of high-end vehicles we service in our shop. Be a part of the rare opportunity to have one of the cleanest and most experienced specialty shops in the World service your transmission! We love the older Mitsubishi transmissions and have not forgotten that it is these units which got us to where we are today. We will continue to service them as we want to continue to support the community. This is a great opportunity for the Mitsubishi enthusiast to have a build using the same high-end equipment to service the Mitsubishi transmission as we use for the expensive exotic units. This means that the cleanliness and attention to detail is unmatched! Our pricing structure was created to assure only the highest quality materials and workmanship. Anyone which beats our price is taking short-cuts which you will pay for in the end. Look into the details of our build services and you will see the additional attention we provide which is unique and cannot be duplicated. |
| Core Exchange | CORE EXCHANGE SERVICE: Please email us for price and availability. Many of the build services we offer can be performed on an 'exchange' basis. Core charges and core convenience fees are separate from the costs of the build service. In many cases, core fees can be refunded pending the condition of what we receive in exchange. Note: We will retain a 10% convenience for this service. |
| Micropolish Info | MICROPOLISH: Micropolishing is a gentle polish on the gears that will smooth and remove some stress concentrations uniformly. It also polishes the gears in the area they make contact with other parts, so you have less friction loss which means less heat, better fuel economy, and longer life. |
| WPC Info | WPC GEAR TREATMENT: WPC is a permanent surface treatment that reduces friction while strengthening the part. Its unique micro-dimple formation pattern greatly reduces friction and is unmatched by conventional methods of surface treatment. It is a proven process that has been utilized for many years in the racing and automotive industry and is complimented by utilizing our Micropolish treatment. WPC can strengthen parts in two ways. First it adds an extremely high level of compressive stress at, and near, the surface. The second, is that the WPC treatment creates a Nano - Crystalline structure at the surface of the metal. Both of these mean that metal fatigue and crack initiation are both noticeably reduced; thus strengthening the gears and shafts inside of the transmission. |
| Shipping Info | SHIPPING: Shipping your Transmission (or complete car) to us is simple! We work with several LTL Freight and Vehicle Transport companies to offer you affordable shipping options. We will arrange all of the logistics on our end, making the process simple and stress free. Please email us for a quote! |
Drag 750 Build Service – 8HP51 / 8HP45
- Brand: Jacks Transmissions
- Availability: In Stock
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$2,450.00
